Vol. 12, Issue 3 (2023)

Author(s):
SV Gawarkar, MJ Patil, RW Ingle, Tini Pillai and VJ Tambe

Abstract:
Sesame (Sesamum indicum L.) is an annual plant of the Pedaliaceae family and one of the most ancient oilseed crops known to man. Sesame has been grown, for cooking and medicinal needs. Generally, 65% of world sesame production is used as edible oil, and 35% for confectionary purpose. In the present investigation five seed samples viz., AKT-101, GT-10, JLT-408, N-8, PKV NT-11 were tested to detect the association of seed borne mycoflora by standard blotter paper method, pretreatment blotter method and agar plate method. From the present study it was revealed that six fungal species associated with sesamum varieties viz., Fusarium oxysporum, Aspergillus niger, Aspergillus flavus, Alternaria alternata, Curvularia lunata and Cladosporium spp. Standard blotter paper method was found superior in detection of seed borne mycoflora of sesamum. The inhibitory effect of major seed borne fungus Fusarium oxysporum was observed on seed germination, seedling length and seedling vigour index of sesamum varieties by towel paper method. The result indicated that uninoculated seed samples exhibited germination in the range of 83.25% to 96.50% while the inoculated seed samples showed germination ranging from 52.50% to 65.25%. Shoot length were ranged from 2.8 to 3.4 cm in inoculated seed samples and 6.3 to 7.2 cm in uninoculated samples. Root length was ranged from 4.6 to 5.5 cm in inoculated seeds and 6.9 to 8.1 cm in uninoculated seeds. It was observed that shoot and root length of sesamum varieties reduced due to Fusarium oxysporum over an uninoculated seeds. A seedling vigour index ranged from 388.50 to 580.70 in inoculated seeds and it was ranged from 1182.10 to 1389.60 in uninoculated seeds.